Translucent imaging paper display materials with biaxially oriented polyolefin sheet

Abstract

The invention relates to an imaging element comprising a paper base, one layer of biaxially oriented polyolefin sheet and at least one image layer wherein said paper base sheet has a basis weight of between 40 and 120 g/m2, and said biaxially oriented polyolefin sheet has a spectral transmission of at least 40% and a reflection density less than 60%.

What is claimed is:  
     
       1. An imaging element comprising a paper base, one layer of biaxially oriented polyolefin sheet and at least one image layer wherein said imaging element diffuses light, said paper base sheet has a basis weight of between 40 and 120 g/m 2 , and said biaxially oriented polyolefin sheet has a spectral transmission of between 40% and 60%, and a reflection density less than 60%. 
     
     
       2. The imaging element of claim  1  wherein said reflection density is between 46 and about 54%. 
     
     
       3. The imaging element of claim  1  wherein said biaxially oriented polyolefin sheet further comprises microvoids. 
     
     
       4. The imaging element of claim  3  wherein said microvoids comprise at least one layer of said biaxially oriented polyolefin sheet and have at least 6 voids in the vertical direction at substantially every point of the biaxially oriented polyolefin sheet. 
     
     
       5. The imaging element of claim  4  wherein said biaxially oriented polyolefin sheet comprises between 6 and 30 voids in the vertical direction. 
     
     
       6. The imaging element of claim  1  wherein said biaxially oriented polyolefin sheet has an integral layer of polyethylene on the top of said sheet. 
     
     
       7. The imaging element of claim  1  wherein said paper base is substantially free of pigment. 
     
     
       8. The imaging element of claim  7  wherein said spectral transmission is between 46 and 54%. 
     
     
       9. The element of claim  8  wherein said element comprises only one layer of biaxially oriented polyolefin sheet and said only one sheet is on the top of said element. 
     
     
       10. The imaging element of claim  1  wherein said at least one image layer is located on the top side of said imaging element. 
     
     
       11. The imaging element of claim  1  wherein said biaxially oriented polyolefin sheet comprises between 4 and 12 weight percent of titanium dioxide. 
     
     
       12. The element of claim  1  wherein said element comprises at least one ink jet receiving layer. 
     
     
       13. The element of claim  1  wherein said element comprises at least one thermal dye transfer receiving layer. 
     
     
       14. The element of claim  1  wherein said element comprises at least one electrophotographic receiving layer. 
     
     
       15. The element of claim  1  wherein said element comprises at least one printing ink receiving layer. 
     
     
       16. The element of claim  1  wherein said element comprises only one layer of biaxially oriented polyolefin sheet and said only one sheet is on the top of said elelment. 
     
     
       17. A method of imaging comprising providing an imaging element comprising a paper base, at least one layer of biaxially oriented polyolefin sheet and at least one imaging layer, wherein said paper base has a basis weight of between 40 and 120 g/m 2 , and said biaxially oriented polyolefin sheet has a spectral transmission of between 40% and 60%, and a reflection density less than 60%, said imaging element diffuses light, and ink jet printing on said image layer. 
     
     
       18. A method of imaging comprising providing an imaging element comprising a paper base, at least one layer of biaxially oriented polyolefin sheet and at least one imaging layer, wherein said imaging member diffuses light, said paper base has a basis weight of between 40 and 120 g/m 2 , and said biaxially oriented polyolefin sheet has a spectral transmission of between 40% and 60% and a reflection density less than 60%, and thermal dye transfer printing on said image layer. 
     
     
       19. A method of imaging comprising providing an imaging element comprising a paper base, at least one layer of biaxially oriented polyolefin sheet and at least one imaging layer, wherein said imaging member diffuses light, said paper base has a basis weight of between 40 and 120 g/m 2 , and said biaxially oriented polyolefin sheet has a spectral transmission of between 40% and 60% and a reflection density less than 60%, and electrophotographicly printing on said image layer. 
     
     
       20. A method of imaging comprising providing an imaging element comprising a paper base, at least one layer of biaxially oriented polyolefin sheet and at least one imaging layer, wherein said imaging member diffuses light, said paper base has a basis weight of between 40 and 120 g/m 2 , and said biaxially oriented polyolefin sheet has a spectral transmission of between 40% and 60% and a reflection density less than 60%, and gravure printing on said image layer.